Locomotive tender with oil separator



March 12, 1929. 'r. F. JACKSON LOCOMOTIVE TENDER WITH OIL SEPARATOR Filed on 10, 1925 INVENTOR. THO 7A5 f'jncxso/v V v r 0. M

I ATTORNEY.

Patented Mar. 12,1929. l l I UNITED TATES A E a i I THOMAS E. JAoxsom or 'wmmrne, MANITOBA, CANADA, Assrenon To THE sUrER- V HEATER'COMPANY, or nnw yoax, n. Y; LoooMorIvE TENDER WITH orL sErARAroR.

A lication filed October 10, 1925', SeriaLNo 6136mm in'Canada January 192 s. a

as particular reference to the purifica- Figure 1, and Figure 3 is an end view'of the tion ofvwater returned thereto from a 1000- valve controlling the separator discharge line. motivefeedwater heater. 7 p Beferring'now to Figure 1, the tender tank 55 5 i In caseswherethe feedwaterofalocomotive 1s indicated generally at ,1, having the usual is heated by means'o'f an exhaust steam heater bottom sheet 2, top sheet 3, and filling open-=- of the closed type, a considerable quantity of mg 4 with hinged cover plate 5. Sheet 6 sep the exhaust steam is condensed in the heater arates the tank from the coal space 7 of the and must be disposed of, the quantity of conender; y I 1 10 densate being too great to be discharged into The main body of the separator is formed the locomotive stack or to the ground. For by the cylindrical casing 8 extending downthis'rea'son, and also because of the desirabil- Wardly through an aperture in the top sheet 3 I ity of conserving the locomotive water sup- 0f the tank andresting upon the bottom sheet ply, V the condensate is ordinarily returned 2. At its lower end the casing 8 is closedby 16 from the heater to the locomotive tender. thesheet 9, having an aperture therein com- The return of the heater condensate dimunicating with a drain pipe 10, which exrectly to the tender is objectionable,however, tends through the bottomsheet 2 and is conbecause of the lubricating oil which is carried trolled'by Valve 11', The casing 8 isextended from the engine cylinders by the exhaust above the level'of the sheet 3 through an open- 20 steam into the heater condensate, and it has ing therein and is suitably secured to the been found desirable to provide filters in the s eet, as by means of the angle iron 12. Prefcondensate return line so that only pure Water elably he casing 8 should extend slightly is returned to the tender. Exhaust steam abOVe the level of the top'of the filling open- A heaters are generally located so that the cong for a b l Will become a-pp 25 d at i t d t th t nder by gravity, ent later, although extension to this heightis but the elevation of the heater above; the top not essential.) A cover plate 13 is provided of the tender tank cannot exceed a very small f r the ng v g. an p g therein t, d f this reason an filt whi h through which communication is established imposes any appreciable resistance on the e we n he p f h C i g nd h p f 3o flow through the condensate return line is unj elil r nk by means f a pipe C IIIIeC- suitable for use in this connectionr'f" tion 14, connecting thisopening with "a simi- I It is the object of my'invention, therefore, I p i g n the S e t a i "to provide a filter or oilseparator which will Communication between the main tank 1 efl 'ectively remove any oil in th heat r om andthe. lower portion'of the casing S'isestabdensate before it is returned to the tender lished by means of a pipe 15, which e t s t k n which will, at i e ti -j u wardly from a point inside the casing near pose no resistance on the flow through the the bottom thereof and terminates in an condensate return line. It is a further object elb w 6, se ured t the asing ar und an I of the invention to produce a separator of, opening therein slightly below the levelevof 9o 40 this character which may be readily and the top of the main tank 1.. The condensate cheaply installed in existing tender tanks and 1"eturn pipe 17 enters the casing through the which will be unaffected in operation by vaupper "portion thereof and terminates in an -riations in the level of the water in the tank. extension 18,having a discharge opening near Further andfmore detailed objects of the inthe bottom level of the tank. An overflow 4 vention will become apparent in connection pipe 19 isprovided having an inlet inside the V invention relates to locomotive tenders rior of a portion of the apparatus shown in i A and withthe following description of a preferred cas ng approximately at. the level of the top embodiment of the invention, illustrated in of-the main tank 1 and is controlled. by a the accompanyingfdrawings, in which Figure valve 20, the weighted. operating arm 2ljoi' lisafragmentary vertical sectionfof a tenwhich is connected to the hinged cover plate 50 vderr tank I showing the separator installed 5,.by meansof chain 23, so that whenthe therein; Figure 2 is a plan" view of the inte cover plate is opened the valve'is thrown to open position; Nhen the cover plate is closed the valve is held in closed position by the weighted operating arm 21. A balfle 22, is provided within the casing 8 dividing the lower portion'thereot' into two compartments, The extension of the condensate discharge pipe extends into one of these compartments, while the pipe 15 forming the communication between the casing'and'the main tank 1 extends into the second compartment.

The operation of thedevice is as'follows: hen the tendertankvis filled, water flows into the casing 8- through pipe 15 until the levels in the ma in tank and in thecasingare the same, pipe 14: providing means forthe equalization of air pressures. Condensate discharged from pipe 18 is forced to flow upwardly through one of the lower compartments in the casing by ithebaffle 22 and any oil contained in the condensate rises to the top of the water in the casing 8 Thecontinued discharge of condensate into the casing 8 tends to raise the water level thereinahove the level in the tank 1, and the cover plate 5 and valve QO'being closed, this causes-anoverflow through pipe 15 into tank 1. Aswater is withdrawn from the main tank 1,.and the water level therein drops, the water-level in the casing 8' will i correspondingly be lowered until it reaches the level of the opening at 16'. VAsjthis is thelo'west opening in thecasing 8, the minimum water level in the casing will be at this. point, regardless of the water level in the tank 1, so that oil sepa rated from the condensate and floating in the casing 8 is always kept a considerable distance above the inlet of pipe 15, which discharges only oil free water intothe main tender'tank.

' When the main tank is filled the valve20 in the overflow pipe is first automatically opened by the opening of the filling cover 5, and as such tanks are invariably filled until they overflow, the water level is carried upward into the filling opening 4 This raises the water level in the casing '8 to a point above the inlet of the overflow pipe 19, which serves to discharge the water from the top i of the casing,together with the accumulated oil floating thereon Itwill thus be seen that the water level within the casing 8 can vary on] between two dischar e 0 enin s 're gardless of water conditions within the main tank, while the condensate passing through the casing 8 is forced to travel a tortuous path considerable length, and as the cross 'sectional area at this point is comparatively large, a low rate of flow results, which gives ample opportunity for the'oil' in the condensate to separate and rise to the top of the water in the casing, from which point it'is periodically removed through the overflow 19 as the tankis filled.

f Iclaimi lQIii apparatus the class described,thc

from theiupperzportion of said casing. I

2. In apparatus oi. the class described, the combination wltha locomotive tender tank,

of a closed casing extendingdownwardly therein, a pipe having an inlet end adj acent to the'bottomof said casing, and an outlet end near the top of said,tank,a condensate discharge pipe openingintjo'said casingadjacent to the bottom thereofla baflle dividing the lower portion ofsai'd casing'into two vcompartments, said ba-flle extending from the bottom upwardly between said pipes to, a point substantially above the lower ends thereof, and an overflow pipe leading'trom the upper portion ofsaid casing.

V 3'. In apparatus of the class described, the

combination with a, locomotive tender'tank having a filling opemng and'cover therefor, of a casingflextending downwardly into sa d tank, a pipe establishing,communication be- I tween the lower portion ofsaid'casing and the upper portion of said tank, a condensate} discharge pipe openinginto said casing, an overflow pipe leading fromrthe upper portion of said casing, a valve controlling'said overflow pipe, and a mechanical connection between said cover plate and said-valve for opening and closing; the latter with the former.

' 4. In apparatus of the'el ass described, the combination with a T locomotive tender tank having'an opening in the top thereof, of a closed, casingextending from a point above theftop ot-saidtank through said'openingto the bottom ofthe tank, a condensate return pipe opening, into said casing adjacent to the bottom thereof, an overflow pipe having an inlet substantially at'the level of the top of said tank and leading from. said casing, a pipe having'an opening adjacent to the bottom of said casin g and extending upwardly to an opening communicating with said tank, and abafile located between said first named and said last named pipes, said baflie extending from the bottom of said casing substantially tothe top of said'last named pipe. 7

5. In apparatus of the class'described, the combination with a locomotive tender. tank having an opening inv the top sheet thereof, a filling opening and: a cover plate tl1e refor, of a casing extending from a point above said tank through said'first named opening sub-.

ing'in. said casingadjacent to the bottom thereof, a second pipe providing communication between the lower portion of said casing 7 and the upper portion of said tank, a bafile located between the discharge end of said condensate pipe and the inlet end of Said second named pipe, a pipe providing communication between the top of said tank and the top of said casing, an overflow pipe leading from said casing and having an inlet sub stantially on a level. with the top of said tank,

a valve controlling said overflow pipe, and a mechanical connection between said valve and 1 said cover plate for opening and closing the former with the latter,

THOMAS F. JACKSON. 

